1. Methamphetamine synthesized using anhydrous ammonia.
2. A person who is skilled in the art of synthesizing methamphetamine using anhydrous ammonia.
3. A person who smokes large quantities of methamphetamine.

1. Shit, is that a bag of vanilla ninja.
2. Of course I'm tweaking, I just vistited the Vanilla Ninja.
3. I bet you that vanilla ninja hasn't slept in two weeks.